Question 1
What is the solution of n² - 49 = 0?
0 +7
07
-7
O no solution
2 answers:
Hey there!
This can be written as

This is in form of

, it can be expanded as
=> (n-7)(n+7)=0
=> n -7 = 0 or n + 7 = 0
=> n = 7 or n = -7
So option 7 , -7 are correct.
Hope this is clear :)
Have a good day:)
-7 is the correct answer have a good day
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